Oolite lime sand packs naturally with 40% porosity because the particles are essentially spheroids . 自然堆積的灰質(zhì)鮞粒砂具有40的孔隙度,因?yàn)槠漕w粒其本上都是球狀的。
The thin - beded siliceous - rocks include chert and depositional quartz with textures of oolite and pebble 矽質(zhì)巖包括燧石和沈積石英巖,呈薄層狀產(chǎn)出,沈積石英巖具鮞狀、礫狀結(jié)構(gòu)。
The middle part is a set of large tidal range tidal sequence including oolitic shoal fades which is made up of bedded - oolite dolomite and oolite limestone , gypsum - tidal fades in sabkha environment which consists of bedded gypsolyte , and gypsolyte - bearing gypsum - dolomite tidal facies 中部為層狀鮞粒白云巖、鮞?;?guī)r的潮下鮞粒灘相與薩布哈環(huán)境的富層狀石膏巖的膏坪相、含石膏巖的膏云坪相組成的大潮差蒸發(fā)潮坪層序。
However , the authors discovered recently that the top and bottom surfaces of the loushanguan formation are palaeokarst unconformity interfaces , and there are a lot of interbeds of granular ( oolite , pisolite and oncolite ) dolomite and algae - mat dolomite , especially sedimentary structures such as the bird ? s eye , stromatolite , cross bedding and tepee structures 但筆者新近研究發(fā)現(xiàn),其頂、底均為古巖溶不整合面,并有大量顆粒(鮞、豆、核形石)白云巖和藻紋層白云巖夾層,還有許多鳥眼構(gòu)造、疊層石構(gòu)造、交錯(cuò)層理、帳蓬構(gòu)造存在。
Owing to extensive distribution of the oolite in t1f3 in west hubei and east chongqing , the oolitic beach reservoir is becoming a focus to research in the region . based on the monographic studies of depositional environment and sedimentary facies , diagenesis and pore evolvement , elementary characteristics of the reservoir , the paper endeavored to educe comprehensive appreciation and forecast to oolitic beach reservoir in t1f3 in west hubei and east chongqing 本論文即圍繞鮞灘儲(chǔ)層這個(gè)中心,在對(duì)沉積環(huán)境與沉積相、成巖作用與孔隙演化以及儲(chǔ)層基本特征等進(jìn)行專題研究的基礎(chǔ)上,力爭(zhēng)對(duì)鄂西渝東區(qū)飛三段鮞灘儲(chǔ)層作出綜合評(píng)價(jià)與預(yù)測(cè)。
百科解釋
Oolite (egg stone) is a sedimentary rock formed from ooids, spherical grains composed of concentric layers. The name derives from the Hellenic word òoion for egg.
詳細(xì)百科解釋
其他語種釋義
ooliteとは意味:{名} : 《地質(zhì)》ウーライト、魚卵石{ぎょらん せき}◆【同】roestone; egg stone -------------------------------------------------------------------------------- 【発音】o'uэla`it、【分節(jié)】o?o?lite